Home / 862,086.60-1,189,716.42-480,113.40

Finding the Fourth Proportional to 862,086.60, 1,189,716.42 and 480,113.40

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Solution

The fourth proportional to 862,086.60, 1,189,716.42 and 480,113.40 is: 662,577.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,086.60 : 1,189,716.42 = 480,113.40 : x
  2. Step 2: Convert to fraction form
    862,086.60/1,189,716.42 = 480,113.40/x
  3. Step 3: Cross multiply
    862,086.60x = 1,189,716.42 × 480,113.40
  4. Step 4: Simplify right side
    862,086.60x = 571,198,795,442.03
  5. Step 5: Solve for x
    x = 571,198,795,442.03/862,086.60
  6. Step 6: Final answer
    x = 662,577.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.